VOL_ADJ
VOL_MUTE
GAIN_SELECT
HP_DETECT
AUDIO/R+
MODE_SELECT
AUD_R
VOL_MUTE
AUD_L
MODE_SELECT
AUDIO/R-
AUD_R
SHUTDOWN
AD5V
AUDIO/L-
AUDIO/L+
AUD_L
AUDIO_ON
GAIN_SELECT
SHUTDOWN
V19V
V5A
AUDIO/R-
VOL_ADJ
AUDIO/L+
AUDIO/R+
AUDIO/L-
AUDIO_ON
V19V
AU5V
AU5V
AU5V
AU5V
AU5V
AU5V
V5A
V19V
AU5V
AUDIO IN JACK
SHUTDOWN : Nomally Low
ON
GAIN SELECT :H
0V
Place near J1 Jack
OV
VOL_MUTE: MCU CONTROL
Low Frequency input -6db point at 241HZ
3.3V
MODE SELECT :H
3.3V
Add new circuit to reduce DC plug out pop noise
C4
OPEN/0603
C4
OPEN/0603
R7
0603/20K
R7
0603/20K
C6
OPEN/0603
C6
OPEN/0603
1
L-1
L-1
C9
0603/0.1U/25V
C9
0603/0.1U/25V
R151
0603/10K
R151
0603/10K
L1
1206/HS800
L1
1206/HS800
R9
0603/20K
R9
0603/20K
1
R+1
R+1
R3
0603/OPEN
R3
0603/OPEN
R13
0603/1K
R13
0603/1K
R10
0603/20K
R10
0603/20K
1
R-1
R-1
C8
0603/0.1U/25V
C8
0603/0.1U/25V
R15
0603/20K
R15
0603/20K
C5
OPEN/0603
C5
OPEN/0603
R4
0603/OPEN
R4
0603/OPEN
2
3
1
J1
2SJ-05131N13
J1
2SJ-05131N13
R16
0603/20K
R16
0603/20K
C12
0603/68n/16V
C12
0603/68n/16V
C16
0603/68n/16V
C16
0603/68n/16V
1
L+1
L+1
C11
OPEN/0603
C11
OPEN/0603
C15
OPEN/0603
C15
OPEN/0603
C10
0603/33n/25V
C10
0603/33n/25V
R2
0603/0R
R2
0603/0R
1
3
2
Q12
2N7002
Q12
2N7002
Mode
4
Mute
5
VDD
6
DC Vol
7
GND
1
Right Dock
9
Right In
10
Beep In
11
Left In
12
Left Dock
13
GND
8
Left Out +
15
Left Out -
17
VDD
27
GND
14
HP Sense
21
Bypass
22
GND
20
Right Gain 1
24
Right Gain 2
25
Right Out -
26
Right Out +
28
VDD
16
Shutdown
2
Gain Select
3
Left Gain 2
18
Left Gain 1
19
GND
23
GND_PAD
29
U1
LM4838MTE
U1
LM4838MTE
R14
0603/6.8K
R14
0603/6.8K
R6
0603/20K
R6
0603/20K
R8
0603/6.8K
R8
0603/6.8K
C7
0603/0.1U/25V
C7
0603/0.1U/25V
R149
0603/10K
R149
0603/10K
+
C17
1206/10U/16V
+
C17
1206/10U/16V
1
3
2
Q2
2N7002
Q2
2N7002
C13
0603/33n/25V
C13
0603/33n/25V
C18
0603/0.1U/25V
C18
0603/0.1U/25V
R24
0603/10K
R24
0603/10K
R11
0603/20K
R11
0603/20K
R17
0603/10K
R17
0603/10K
R1
0603/0R
R1
0603/0R
C2
0603/0.1U/25V
C2
0603/0.1U/25V
R12
0603/20K
R12
0603/20K
R5
0603/10K
R5
0603/10K
1
AU5V1
AU5V1
L2
LL121
L2
LL121
1
AUD_R1
AUD_R1
1
AUD_L1
AUD_L1
R20
0603/10K
R20
0603/10K
1
AUD_G1
AUD_G1
1
3
2
Q1
2N7002
Q1
2N7002
C19
1206/10U/16V
C19
1206/10U/16V
L3
LL121
L3
LL121
+
C1
AL-C/47U/25V
+
C1
AL-C/47U/25V
R21
0603/10K
R21
0603/10K
C3
OPEN/0603
C3
OPEN/0603
1
2
ZD13
UDZ-12B
ZD13
UDZ-12B
L4
LL121
L4
LL121
1
VOL1
VOL1
1
VOL_ADJ1
VOL_ADJ1
56
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VE902m
AUDIO BOARD
Содержание VE902m
Страница 25: ...Figure 5 Figure 8 Figure 7 Figure 6 Figure 5 22 ViewSonic Corporation Confidential Do Not Copy VE902m ...
Страница 30: ...1 10 Select gm5126AA_AB Select gm5126AA_AB 27 ViewSonic Corporation Confidential Do Not Copy VE902m ...
Страница 54: ...8 Exploded Diagram And Spare Parts List 51 ViewSonic Corporation Confidential Do Not Copy VE902m ...
Страница 67: ...64 ViewSonic Corporation Confidential Do Not Copy VE902m 11 PCB Layout Diagrams Main board ...